int
entryUnpack(Entry *e, uchar *p, int index)
{
p += index * VtEntrySize;
e->gen = U32GET(p);
e->psize = U16GET(p+4);
e->dsize = U16GET(p+6);
e->flags = U8GET(p+8);
e->depth = (e->flags & VtEntryDepthMask) >> VtEntryDepthShift;
e->flags &= ~VtEntryDepthMask;
e->size = U48GET(p+14);
if(e->flags & VtEntryLocal){
e->archive = p[27];
e->snap = U32GET(p+28);
e->tag = U32GET(p+32);
memset(e->score, 0, 16);
memmove(e->score+16, p+36, 4);
}else{
e->archive = 0;
e->snap = 0;
e->tag = 0;
memmove(e->score, p+20, VtScoreSize);
}
return 1;
}
p += 4;
e->psize = U16GET(p);
p += 2;
e->dsize = U16GET(p);
p += 2;
e->flags = U8GET(p);
p++;
if(e->flags & _VtEntryBig) {
e->psize = (e->psize>>5)<<(e->psize & 31);
e->dsize = (e->dsize>>5)<<(e->dsize & 31);
}
e->type = (e->flags&_VtEntryDir) ? VtDirType : VtDataType;
e->type += (e->flags & _VtEntryDepthMask) >> _VtEntryDepthShift;
e->flags &= ~(_VtEntryDir|_VtEntryDepthMask|_VtEntryBig);
p += 5;
e->size = U48GET(p);
p += 6;
memmove(e->score, p, VtScoreSize);
p += VtScoreSize;
assert(p-op == VtEntrySize);
if(!(e->flags & VtEntryActive))
return 0;
/*
* Some old vac files use psize==0 and dsize==0 when the
* file itself has size 0 or is zeros. Just to make programs not
* have to figure out what block sizes of 0 means, rewrite them.
*/
if(e->psize == 0 && e->dsize == 0